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Regulating Methods of Design and Installation of Warm Air Winter Air Conditioning Systems & Warm Air Heating Systems in Buildings
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Regulating Methods of Design and Installation of Warm Air Winter Air Conditioning Systems & Warm Air Heating Systems in Buildings
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4/29/2015 12:13:15 PM
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City Council - City Clerk
City Council - Document Type
Ordinances
City Counci - Date
9/23/1946
Ord-Res Number
3571-46
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workmanlike manner.. <br />(b) All sections and joints shall be properly fitted. Joints <br />requiring cement shall be well fitted and all bolts shall be drawn up tightly. <br />Section . Casings. <br />(a) warm air furances shall be enclosed in metal casings. <br />(b) Sheet metal casings, including casing tops or bonnets shall <br />be made of metal sheets not lighter than 26 U. S. Standard Guage. They shall <br />fit the castings and casings rings closely, so as to be dust tight and shall be <br />securely fastened to the front. The casing shall be lined in compliance with <br />manufacturerts specifications. <br />(c) ]Rhen side collars are used the casing top or bonnet must be of <br />sufficient height so that the largest warm air pipe can be taken from side without <br />availing. In no case shall a distance less than 8 inches be maintained between <br />the top of the furnace and the bonnet. <br />(d) Any furance, the casing top of which shall come within 12 inches, <br />of a combustible floor, ceiling or joist, shall be protected by a metal shield, <br />extending not less than 18 inches beyond the casing of said furnace. This shield <br />shall be suspended at least 2 inches below woodwork, allowing free air space <br />between shield and woodwork. No furnace casing or top, coming nearer than 6 inches <br />Of ceiling or joists shall be allowed in any case. All metal casing tops shall <br />be insulated with an air space or covered with magnesia, asbestos boiler covering, <br />or sand. <br />(e) Openings for side casing collars shall be cut into the casing top <br />or bonnet, so that t1ae tops of all openings are on a level. Casing collars shall <br />be fitted into place with a flange, or bead on the outside and drawn up on the <br />inside, making a dust -tight joint. All collars shall not be less than the same <br />size as the warm air pipes to which they are to be connected. <br />Section 5. Warm Air Pipes in Basement. <br />(a) All warm air pipes shall be constructed entirely of noncombustible <br />material equivalent in structural strength and durability to the following: <br />Diameter 16inimum <br />Minimum Thickness <br />Inches ;_'eight of Tin of Galvanized Iron <br />Less than 12 IC (107 lb.) 30 U. S. guage <br />12 or more IX (135 lb.) 28 U. S. guage <br />- 7 - <br />
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